| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an endoscope for PDT capable of obtaining excellent color reproducibility in a video imaged with color and observing the state of a treatment by PDT without causing halation, though not only the color imaging of an inspecting part but the treatment by PDT are performed. <P>SOLUTION: A light distribution lens 16, a main objective lens 15, and a sub-objective lens 50 are fitted to the distal end of the endoscope 11 and also a treatment implement channel 11e is opened. A light guide 20 is disposed inside the endoscope 11 from the rear part of the light distribution lens 16 to a connector 11d. An imaging element 17 is arranged at a position where an image by the main objective lens 15 is formed. An output line from the imaging element 17 is disposed inside the endoscope 11 to the connector 11d. An image guide 51 is disposed from the position, where the image by the sub-objective lens 50 is formed, to the inner part of an operation part. An image forming lens 52 re-forms the image, obtained on the proximal end surface of the image guide 51, onto the imaging surface of the imaging element 52. <P>COPYRIGHT: (C)2008,JPO&INPIT |
